SIX (Slovak Internet eXchange) is a Slovak internet exchange point, established at the Center of Computer Technology of Slovak University of Technology (STU).

As of May 2024[update], the SIX interconnects 64 ISPs[1] operating in the Slovak Republic, and has a peak traffic rate of 831 Gbit/s,[2] making it the most significant exchange point in Slovakia.

Development of annual aggregated data flow peaks (Gbps): [2]